What is an Alternate Way To Angular Migration

Angular Migration Alternative
Angular Migration Alternative

Hello, everyone! How is your day going? I hope it’s going well. I’m gonna tell you about a really important and valuable topic – “What is an alternate way to Angular migration”?

In my opinion, you will like this topic because Angular migration is one of the important things to do. Therefore, many people want to start learning this material. This is not especially new and has been used for many years. In this article, I want to give you a short information about the alternate way to Angular migration and share my thoughts concerning this topic. If you are a newcomer in Angular, I highly recommend you to read this topic. It will be very useful for very resourceful beginners. Now, let’s get started!

Angular migration

Angular is one of the most popular JavaScript frameworks. It is very popular and is used by many companies like Paypal, Upwork, Nike, Google, Sony, HBO, and many more. It is important to add that the Google-developed web application was published in 2009 with the name „AngularJS”. I am writing to draw your attention to the second version of the framework that was renamed to Angular, which was originally published in 2014 but  the full release was in 2016.

A few steps that describe an alternate way to Angular migration

Step 1: Move into Angular

Many studies have shown that our first goal is to improve the toolchain early in the process and to move closer to the Angular ecosystem by combining Angular CLI. First of all, you need to install it using npm. After it has been established, create a new blank application using the CLI. You can migrate your code into the new Angular environment in two ways: copy your files into the app list of the recently created project or copy all files from the newly created project into your modern project. Each way is real. In this regard, you can then remove the lite-server configuration and most of the gulp tasks. In such a way, you will be using Angular CLI for serving, building, and bundling plans. It is clear from the facts that any static assets like images are moved to the assets folder of the new project and global CSS styles are copied over to the styles.css file.

Step 2: Move into Typescript

In this step, you are going to replace Javascript with Typescript. This process will help you to spot bugs during the development earlier. The simplest way towards Typescript integration is to rename all Javascript files to Typescript. In addition, this takes a certain time to install the types for AngularJS and 3rd party libraries and to start using ES6 comments in your code such as let, const, and sign purposes. Needless to say, you need to set the root property type in the compiler options of tsconfig.app.json file so that the Typescript compiler can recognize the connection types. At this point, you can make the appropriate changes in AngularJS code to benefit from the installation of the type.

Convert all of the AngularJS elements and services to ES6 classes and export them.

Step 3:  Bootstrap as a hybrid application

Your goal in this step is to have two frameworks (AngularJS and Angular) running together in hybrid mode. As a result, you will then be able to separate AngularJS regularly without disrupting the functionality of the application. To bootstrap your application as a hybrid one, firstl of all you need to establish the Angular package. Many people claim that after the package has been established, you create the main Angular application module AppModule and import Upgrade Module. Finally, you create the main.ts file which will be the entrance point of the application.

Step 4: Configuration and error handling

In this step, you will use environment files for saving application settings. You can create a custom ErrorHandler for handling global errors that are not made explicitly. Environment files can be found in the environments paper of the project root and generated automatically from the Angular CLI. In each of these files, you define the URL and the developer key of the Marvel API as well as other configuration settings of the application such as the title and the popular version. It is often said that the logger service, which is in the AngularJS context, needs to be upgraded so that it can be used in the system error handler.

Step 5: Upgrade services

This step explains the process of upgrading services of the core module, such as the logger service that you have specified earlier, and 3rd party libraries, such as the angular-resource that is used for HTTP data access. You must remember to recall from the early step that you keep two versions of the logger service for each framework. You will now keep only the Angular one and import it into the respective CoreModule. You can install angular which is the new HTTP client for Angular. You can import the HttpClientModule into the central application module and all services that use the HttpClientare will be converted to Angular and downgraded because there are still AngularJS elements that use them.

Step 6: Upgrade components

This step explains the process of upgrading the elements of the application and 3rd party libraries such as AngularJS Material. You install the Angular material npm package and create a separate module AppMaterialModule that imports and exports Angular Material components. You can upgrade the widgets module and rename the corresponding folder to share to conform with the Angular certain style guide. You can also start upgrading AngularJS components of feature modules.

Step 7: Upgrade router

Another step that is worth noting, is that the upgrade of the routing mechanism is a difficult process. The ideal scenario is to have the UI-router and the Angular router running together during the process. You install the angular router npm package and refactor all components to use the router link directive instead of the custom one that you’ve created in the preceding step. Finally, you upgrade the App Component and bootstrap it in Angular.

So, I presented you seven important steps to an alternate way to Angular migration. I hope that you got some info about these steps.


So, in conclusion, I hope that this article has given you enough information about “What is an alternate way to Angular migration.” Just to summarize the main points again, here are the step:

  1. Step 1: Move into Angular
  2. Step 2: Move into Typescript
  3. Step 3: Bootstrap as a hybrid application
  4. Step 4: Configuration and error handling
  5. Step 5: Upgrade services
  6. Step 6: Upgrade components
  7. Step 7: Upgrade router

I hope this topic was worth your attention!


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